Colonies , protectorates , spheres of influence
It’s B, because that’s the theme of the story
<span>Shifts </span>between<span> cautious cooperation and often bitter superpower rivalry over the years. </span>
If the citizens were not required, no one may want to. On jury, you may have a case that may take a long time and you may end up sentencing someone to death. It is likely if citizens were not required that no one would want to volunteer.